Laminated gear-wheel.



- 1. 4c. BATTLE. LAMRATED GEAR WHEEL. `durumninu man nq. lo. mr.-

1',247,`922. fammi Nov. 27,1917.

. and the strain through the gear wheel.

so is a s `of e `hob ty 65. arrangement o JAMES c. BATTLE, oF DETROIT,MICHIGAN.

LAMINATED GEAR-WHEEL.

Specification of Letters Patent.

Patented Nev'. 27. 1an.

Application filed March 10, 1917. Serial 119,158,961.

To all 'whom it may concern.'

Be it known that I, JAMES BATTLE, a citizen of the United States, and aresident of Detroit, in the county of Wayne and 6 State of Michigan,have invented a certainl lnew and useful'lmproveinent in LaminatedGear-Wheels, of which the' following is a specification. The presentinvention relates to -gear wheels, and 4has for an object to provide animproved gear wheel which may be made up of a number of disks or lamineeaccord ing to the size of 4the gear Wheel. required, to be placed on thegear heel. A An'object of the present invention is to provide a gearwheel of relatively light weigh-tas compared with the width and'diameter of the gear wheel, and to provide a wheel of this characterwhich may be made entirely by means of punch-press dies, in a single, orseveral successive operations. `A further. object of the presentinvention is to provide/a gearwheel which may be of the internal type",which may be of the com- Eound intern `external type, or which may ev ofthe h type, all of which may be made .by puilch-press dies..

The above, advantages of this invention will be in part understodd andin part described, from the following detailed description of the present preferred embodiment, the same vbeing illustrated the accompanyingdrawing wheiein:

, Figure 1 is a side elevation of a spur gear constructed accordingtothe present inven tion.`

Fig. 2 is an edge elevation of the same.

Fig. 3 is a transverse section taken Fig. 4 is aside elevation of a gearwheel of the compound internal external type constructed aicrdmg to thepresent invention. Fig. 5 it',A a Vtransverse section taken through thesame. Fig. 6 is a similar View disclosing a rlighly modid form of thegear wheel of 1 de elevation of a gear wheel e constructed according -to`e present 'inv ntion.

F1g.8 is an ge elevation of the hob gear of Fig; V7, par ly in section,disclosing the the laminas of which the gear wheel is c nstructed.

and various other objects and v vided with Referring Figs. l, 2 and 3,the ear wheel Iis disclosed as comprising four lsks or laminas 10, 11,12 and 13, although it is to be understood thatl the gear Wheel may bemade up of any desired number of disks.

Aln the present instance, the disks or laminas are disclosed as being ofthe same diameter, and having spur teeth 14 stamped in their marginalportlons, and registering transversely. A plurality of rivets 15 aresecured transversely through the lamina: to connect the same into aunitary body.

Certain or' these disks or lamin, such as the outer disks 10 and 13, areprovided with 'relatively small openings 16 adapted to receive a shaftor the like upon which the gear wheel is to be supported. For ordinaryuse, these outer disks 10 and 13 afford an .ample support for the gear.wheel and are capable of withstanding the strain which the gear wheel4is to be locked to the shaft, a keyway 17 may be formed in the innerniarginal edge of each outer, disk 10 and -13 'at one side thereof.

The intermediate 12 are stamped or cut in substantially ring form withrelatively large central openings 18 therein for thepurpose of producinga relatively light gear wheel, and also forthe purpose of economy inmaterial.

As shown in Fig. 6, the shaft-receiving openings 16a may be formedcentrally in the intermediate disks or lamin 11 and 12, and the outerdisks 10 and 13 may be proa relativelylarge central opening 18.

In the form shown in Figs. 4 and 5, the disks orjlaminzn may all beprovided'with the external gear teeth 14, and the outer disks 10b and13h provided with the relatively large central openings, andwithinternal spur teeth 19 at their inner marginaledges. In thisconstruction, the intermediate disks or laminas 11 and 12 are employed.

tothis drawing, and first to is usually placed upon the same. Ify

disks pr laminas 11 and i The hob gear disclosed 'in- Figs. 7 and 8offset relation, oli'settingthe disks or lamin i about their axes ofrotation. Each two adjacent end disks are provided with relati'velysmall shaft-receiving o enings 21 therethrough, and if desired, t ekeyways havin 22 for locking the hob gear to n shaft or the like. Therivets 15 are employed for securing the disks or laminin lateral contactfor uniting the disks into a unitary body. The'` intermediate disks 20are provided with the relatively large central openings 23 for' thepurpose of reducing the weight of the lipb gear, and alsoeconomizing inthe use of the material.

n all instances, it is preferable to construct the laminated gear wheelof sheet meta-l or the lilgl, and where the thickness permits, the dissmay be stamped in one operation to provide thccentrul openings thereinand alsothc gear teeth at their marginal edges. w

It is of` course understoodthat various changes and mo'l ifications maybe made in the above specifically described embodiment of this inventionwithout departing from the spirit thereof, such changes andmodifications being Within the scope of the following claims.

I claim 1. In a wheel, the combination of a plurality offlat disks, andmeans for securing the disks in lateral contact-and 'in coaxialrelation, certain of the disks having central support receiving openingstherethrough vvith` keyways, and certain of the disks having relativelylarge central openings to reduce the weight off the Wheel.

2. In a wheel, the combination of a pluralitygof flat disks, and meansfor securing the disks in lateral contact, certain of 'the diskshavind-central support receiving o enings therethrough, andcertain othert isks relatively large central openings theret roughl to reduce theWeight of the wheel. f

3. In a gear wheel, Athe combination of V a lplurality ofdisks havingspur teeth in their peripheral edges;A and means for securing the disksin lateral contact with the teeth arranged in predetermined transverselrelation, certain of the disks having cut-away central portions toprovide disks of substantially ring form, and certain other disks havingrelatively small centrahregistering lopenings therethrough for thereception of a support for the gear wheel.

4. In a gear wheel, the combination of a plurality of disks formed witha, punchpress die to rovide teeth in the mar inal edges thereo 4andcentral o enings terethrough, certain of the dis s belng provided withrelatively small support-receiving openings, and certain other disksbeing ner marginal edges, andl means for securingv said disks in lateralContact.

G. A compound internal external gear -wheel comprising a' plurality ofdisks cut to provide gear teeth 1n their outer marginaledges, theintermediate disks being formed with relatively small "support-receivingopenings therethrough, and the outer disks having relatively largeweight reducii'lg openings formed. centrally therethrougm,

said outer disks being providedv at their i n` ner marginal edges withinternal gear teeth, and means for securing said disks in lateralcontact Ainto .a unit-ary body.

JAMES o. BATTLE.

provided with relatively large weight-reduc-

